1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkBinomialBlurImageFilter_h
#define itkBinomialBlurImageFilter_h
#include "itkImageFunction.h"
#include "itkImageRegionIterator.h"
#include "itkImageToImageFilter.h"
#include "itkSize.h"
namespace itk
{
/** \class BinomialBlurImageFilter
* \brief Performs a separable blur on each dimension of an image.
*
* The binomial blur consists of a nearest neighbor average along each
* image dimension. The net result after n-iterations approaches
* convultion with a gaussian.
*
* \ingroup ImageEnhancement
* \ingroup ITKSmoothing
*
* \wiki
* \wikiexample{Smoothing/BinomialBlurImageFilter,Blur an image}
* \endwiki
*/
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT BinomialBlurImageFilter:
public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
/** Standard class typedefs. */
typedef BinomialBlurImageFilter Self;
typedef ImageToImageFilter< TInputImage, TOutputImage > Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(BinomialBlurImageFilter, ImageToImageFilter);
/** Number of dimensions */
itkStaticConstMacro(NDimensions, unsigned int, TInputImage::ImageDimension);
itkStaticConstMacro(NOutputDimensions, unsigned int, TOutputImage::ImageDimension);
/** Typedef for images */
typedef TInputImage InputImageType;
typedef TOutputImage OutputImageType;
typedef typename OutputImageType::Pointer OutputImagePointer;
typedef typename InputImageType::Pointer InputImagePointer;
typedef typename InputImageType::ConstPointer InputImageConstPointer;
/** Image size typedef */
typedef Size< itkGetStaticConstMacro(NDimensions) > SizeType;
/** Image index typedef */
typedef typename TOutputImage::IndexType IndexType;
/** Image pixel value typedef */
typedef typename TOutputImage::PixelType PixelType;
/** Typedef to describe the output image region type. */
typedef typename TOutputImage::RegionType OutputImageRegionType;
/** Get and set the number of times to repeat the filter. */
itkSetMacro(Repetitions, unsigned int);
itkGetConstMacro(Repetitions, unsigned int);
/** This filter needs to request a larger input than its requested output.
* If this filter runs "Repetitions" iterations, then it needs an input
* that is 2*Repetitions larger than the output. In other words, this
* filter needs a border of "Repetitions" pixels. */
void GenerateInputRequestedRegion() ITK_OVERRIDE;
#ifdef ITK_USE_CONCEPT_CHECKING
// Begin concept checking
itkConceptMacro( SameDimensionCheck,
( Concept::SameDimension< itkGetStaticConstMacro(NDimensions),
itkGetStaticConstMacro(NOutputDimensions) > ) );
itkConceptMacro( InputConvertibleToDoubleCheck,
( Concept::Convertible< typename TInputImage::PixelType, double > ) );
itkConceptMacro( DoubleConvertibleToOutputCheck,
( Concept::Convertible< double, PixelType > ) );
// End concept checking
#endif
protected:
BinomialBlurImageFilter();
virtual ~BinomialBlurImageFilter() ITK_OVERRIDE {}
void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;
/** Method for evaluating the implicit function over the image. */
void GenerateData() ITK_OVERRIDE;
private:
ITK_DISALLOW_COPY_AND_ASSIGN(BinomialBlurImageFilter);
/** How many times should we apply the blur? */
unsigned int m_Repetitions;
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkBinomialBlurImageFilter.hxx"
#endif
#endif
|
